pandas.core.groupby.DataFrameGroupBy.diff

DataFrameGroupBy.diff(periods=1, axis=0)

1st discrete difference of object

Parameters:	periods : int, default 1 Periods to shift for forming difference axis : {0 or ‘index’, 1 or ‘columns’}, default 0 Take difference over rows (0) or columns (1).
Returns:	diffed : DataFrame